login
The OEIS Foundation is supported by donations from users of the OEIS and by a grant from the Simons Foundation.

 

Logo


Hints
(Greetings from The On-Line Encyclopedia of Integer Sequences!)
A251466 Number of (n+1)X(7+1) 0..2 arrays with every 2X2 subblock summing to a prime and those sums nondecreasing in every row and column 1
50306, 373380, 2678350, 14306546, 75006354, 324243821, 1378354755, 5171467239, 19112759465, 64992838581, 218002148541, 691112888352, 2162935670566, 6516410789833, 19386252148251, 56253833823574, 161157974255043 (list; graph; refs; listen; history; text; internal format)
OFFSET

1,1

COMMENTS

Column 7 of A251467

LINKS

R. H. Hardin, Table of n, a(n) for n = 1..35

EXAMPLE

Some solutions for n=1

..1..1..2..2..2..2..2..2....1..1..2..2..2..1..1..2....1..0..2..0..2..1..2..0

..2..1..1..0..1..0..1..2....2..1..1..0..1..1..2..2....2..0..1..2..1..1..1..2

CROSSREFS

Sequence in context: A202490 A105001 A237949 * A267252 A166760 A231918

Adjacent sequences:  A251463 A251464 A251465 * A251467 A251468 A251469

KEYWORD

nonn

AUTHOR

R. H. Hardin, Dec 02 2014

STATUS

approved

Lookup | Welcome | Wiki | Register | Music | Plot 2 | Demos | Index | Browse | More | WebCam
Contribute new seq. or comment | Format | Style Sheet | Transforms | Superseeker | Recent
The OEIS Community | Maintained by The OEIS Foundation Inc.

License Agreements, Terms of Use, Privacy Policy. .

Last modified April 10 18:17 EDT 2021. Contains 342853 sequences. (Running on oeis4.)